Home / 19,286.10-28,880.55-14,328.90

Finding the Fourth Proportional to 19,286.10, 28,880.55 and 14,328.90

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Solution

The fourth proportional to 19,286.10, 28,880.55 and 14,328.90 is: 21,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.10 : 28,880.55 = 14,328.90 : x
  2. Step 2: Convert to fraction form
    19,286.10/28,880.55 = 14,328.90/x
  3. Step 3: Cross multiply
    19,286.10x = 28,880.55 × 14,328.90
  4. Step 4: Simplify right side
    19,286.10x = 413,826,512.90
  5. Step 5: Solve for x
    x = 413,826,512.90/19,286.10
  6. Step 6: Final answer
    x = 21,457.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.